Spectroscopy of the ${}^1{S}_0$-to-${}^1{D}_2$ clock transition in ${}^{176}$Lu${}^{+}$

Abstract

High precision spectroscopy of the ${}^1{S}_0$-to-${}^1{D}_2$ clock transition of ${}^{176}$Lu is reported. Measurements are performed with Hertz level precision with the accuracy of the hyperfine-averaged frequency limited by the calibration of an active hydrogen maser to the SI definition of the second via a GPS link. The measurements also provide accurate determination of the ${}^1{D}_2$ hyperfine structure. Hyperfine structure constants associated with the magnetic octupole and electric hexadecapole moments of the nucleus are considered, which includes a derivation of correction terms from third-order perturbation theory.

8 pages, 3 figures

References in corpus (3)

• Hyperfine structure of the metastable 3P2 state of alkaline earth atoms as an accurate probe of nuclear magnetic octupole moments
• Nuclear magnetic octupole moment and the hyperfine structure of the $5D_{3/2,5/2}$ states of the Ba${}^{+}$ ion
• Observation of the ${}^1$S${}_0$ to ${}^3$D${}_1$ clock transition in ${}^{175}$Lu${}^{+}$

Cited by in corpus (2)

• Sub-kelvin temperature management in ion traps for optical clocks
• Precision measurement of the ${}^3{D}_1$ and ${}^3{D}_2$ quadrupole moments in Lu${}^{+}$